QUESTION 45Drag and Drop QuestionMatch each IP address to its corresponding IPv4 address class.To answer, drag the appropriate IP address from the column on the left to its IPv4 address class on the right. Each IP address may be used once, more than once, or not at all. Each correct match is worth one point.

QUESTION 46This question requires that you evaluate the underlined text to determine if it is correct.The process of replicating a zone file to multiple DNS servers is called zone replication,Select the correct answer if the underlined text does not make the statement correct. Select ‘No change is needed” if the underlined text makes the statement correct.

Answer: AExplanation:DNS zone transfer, also sometimes known by the inducing DNS query type AXFR, is a type of DNS transaction. It is one of the many mechanisms available for administrators to replicate DNS databases across a set of DNS servers.

QUESTION 47You work at a coffee shop. Your supervisor asks you to help set up a computer network.The network needs to have the following items:– A public facing web server– A Wi-Fi network for customers– A private network for the point of sale terminals An office PC– A file/print server– A network printerYou need to set up a perimeter network to protect the network.Which two items should you include in the perimeter network? (Choose two.)

Answer: ABExplanation:Put the web server and the network printer on the perimeter network.The file server, wifi-network, and the Point of sale terminals should not be accessible from the internet.Note: A network perimeter is the boundary between the private and locally managed-and-owned side of a network and the public and usually provider-managed side of a network.

QUESTION 48Drag and Drop QuestionMatch the networking topologies to their corresponding characteristics.To answer, drag the appropriate topology from the column on the left to its characteristic on the right. Each topology may be used once, more than once, or not at all. Each correct match is worth one point.

Answer:

Explanation:* StarIn star topology, every node (computer workstation or any other peripheral) is connected to a central node called a hub or switch.* RingEach device present in Ring Topology is incorporated with a REPEATER.* MeshFully connected mesh topology:

A fully connected network is a communication network in which each of the nodes is connected to each other.* StarIn star topology, every node (computer workstation or any other peripheral) is connected to a central node called a hub or switch.* mesh (full)The major disadvantage is that the number of connections grows quadratically with the number of nodes,as per the formula: c=n(n-1)/2* RingRing Topology: In this type of Topology, data is passed from one node to another in a series. Here each device has dedicated Point-to-Point connection, with only two devices present on either side of it.

QUESTION 49Which two features of a Windows Server 2008 R2 server should you install to use that server as a software router? (Choose two.)

Answer: ABExplanation:To install the Routing and Remote Access service1. In the Server Manager main window, under Roles Summary, click Add roles.— OR —In the Initial Configuration Tasks window, under Customize This Server, click Add roles.2. In the Add Roles Wizard, click Next.3. In the list of server roles, select Network Policy and Access Services. Click Next twice.4. In the list of role services, select Routing and Remote Access Services to select all of the role services. You can also select individual server roles.5. Proceed through the steps in the Add Roles Wizard to complete the installation.Reference: Install and Enable the Routing and Remote Access Service.

Answer: CDExplanation:C: A mechanical splice is a junction of two or more optical fibers that are aligned and held in place by a self- contained assembly (usually the size of a large carpenter’s nail).[1] The fibers are not permanently joined, just precisely held together so that light can pass from one to another.D: Modern connectors typically use a “physical contact” polish on the fiber and ferrule end. This is a slightly convex surface with the apex of the curve accurately centered on the fiber, so that when the connectors are mated the fiber cores come into direct contact with one another.Note: Optical fiber connectors are used to join optical fibers where a connect/disconnect capability is required. Due to the polishing and tuning procedures that may be incorporated into optical connector manufacturing, connectors are generally assembled onto optical fiber in a supplier’s manufacturing facility.

QUESTION 51Hotspot QuestionIdentify the network cable type and connector in the following graphic:

Use the drop-down menus to select the answer choice that answers each question. Each correct selection is worth one point.

Answer:

Explanation:This is an RJ45 ethernet cable.

QUESTION 52Which Microsoft network service can you use to establish a connection to a corporate LAN without any user action?

A. VPNB. Remote DesktopC. DirectAccessD. Nap

Answer: CExplanation:DirectAccess allows remote users to securely access internal network file shares, Web sites, and applications without connecting to a virtual private network (VPN). An internal network is also known as a private network or intranet. DirectAccess establishes bi-directional connectivity with an internal network every time a DirectAccess-enabled computer connects to the Internet, even before the user logs on. Users never have to think about connecting to the internal network and IT administrators can manage remote computers outside the office, even when the computers are not connected to the VPN.

QUESTION 53Hotspot QuestionFor each of the following statements, select Yes if the statement is true. Otherwise, select No. Each correct selection is worth one point.

Answer:

Explanation:* No.With a recursive name query , the DNS client requires that the DNS server respond to the client with either the requested resource record or an error message stating that the record or domain name does not exist. The DNS server cannot just refer the DNS client to a different DNS server.* No. * Yes.An iterative name query is one in which a DNS client allows the DNS server to return the best answer it can give based on its cache or zone data. If the queried DNS server does not have an exact match for the queried name, the best possible information it can return is a referral (that is, a pointer to a DNS server authoritative for a lower level of the domain namespace). The DNS client can then query the DNS server for which it obtained a referral. It continues this process until it locates a DNS server that is authoritative for the queried name, or until an error or time-out condition is met.Example:

QUESTION 54Drag and Drop QuestionMatch the IPv4 address type to the corresponding definition.To answer, drag the appropriate definition from the column on the left to the address type on the right. Each definition may be used once, more than once, or not at all. Each correct match is worth one point.

Answer:

Explanation:* MulticastMulticast is communication between a single sender and multiple receivers on a network.* BroadcastBroadcasting sends a message to everyone on the network.* UnicastUnicast is a one-to one connection between the client and the server.

QUESTION 55This question requires that you evaluate the underlined text to determine if it is correct.A secondary zone is the first DNS zone to which all updates for the records that belong to that zone are written.Select the correct answer if the underlined text does not make the statement correct. Select ‘No change is needed” if the underlined text makes the statement correct.

Answer: AExplanation:When a zone that this DNS server hosts is a primary zone, the DNS server is the primary source for information about this zone, and it stores the master copy of zone data in a local file or in AD DS.